Examples from the Web for economizer
The economizer and the stoker gear and worm were driven by a Brotherhood three cylinder hydraulic engine.
At the back of the boilers was a Green's economizer, consisting of ninety-six tubes.
It is composed of two parts, the boiler proper and the “economizer.”
Thus at the outset tobacco exhibits itself as an economizer of life.Tobacco and Alcohol|John Fiske
From the economizer the gas is drawn through a wet scrubber where it undergoes a further cooling and is cleansed of dirt and dust.